ServerSocket不接受客户端的连接请求。客户端和套接字都一直在等待

Question

我正在尝试使用Wifi P2p在android上制作一个简单的文件共享应用。 但是未建立连接，因为服务器未接受客户端的连接。 这是我发件人设备的代码。

private class FileSender implements Runnable
    {
        private String filename;
        private File mFile;
        private File rootFolder;
        private ServerSocket serverSocket;
        private Socket socket;
        private FileInputStream fileInputStream;
        private BufferedInputStream bufferedInputStream;
        private DataOutputStream dataOutputStream;

        FileSender(File rootFolder, String filename) {
            this.rootFolder = rootFolder;
            this.filename = filename;
            this.mFile = new File(this.rootFolder.getAbsolutePath() + "/" + this.filename);
            if(mFile.exists())
            {
                Log.e("File","Found");
            }else
            {
                Log.e("File","NOT Found");
            }
        }

        @Override
        public void run() {
            try {
                Log.e("Connecting to","Client");
                serverSocket = new ServerSocket(2050);
                socket = serverSocket.accept();
                Log.e("Connection","Made");
                dataOutputStream = new DataOutputStream(socket.getOutputStream());
                fileInputStream = new FileInputStream(mFile);
                bufferedInputStream = new BufferedInputStream(fileInputStream);
                int len = (int)mFile.length();
                byte data[] = new byte[len];
                int l;
                while( (l = bufferedInputStream.read(data,0,len)) > 0)
                {
                    dataOutputStream.write(data,0,l);
                }
                //Toast.makeText(getApplicationContext(),"File Sent",Toast.LENGTH_LONG).show();
                Log.e("File","Sent");
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        void stop()
        {
            try
            {
                dataOutputStream.close();
                bufferedInputStream.close();
                fileInputStream.close();
                socket.close();
                serverSocket.close();
            }catch(Exception e){

            }
        }
    }

接收器设备：

private class FileReceiver implements Runnable
    {
        InetAddress host_address;
        String filename;
        Socket socket;
        DataInputStream dataInputStream;
        File rootFolder;
        File mFile;
        FileOutputStream fileOutputStream;
        BufferedOutputStream bufferedOutputStream;
        boolean fileExists;

        FileReceiver(InetAddress host_address,File rootFolder,String filename) {
            this.host_address = host_address;
            this.filename = filename;
            this.rootFolder = rootFolder;
            this.mFile = new File(this.rootFolder.getAbsolutePath() + "/" + this.filename);

            if(!mFile.exists())
            {
                try {
                    if(mFile.createNewFile())
                    {
                        Log.e("File","Created");
                    }else
                    {
                        Log.e("File NOT","Created");
                    }
                    fileExists = false;
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }else
            {
                Log.e("File","Already Exists");
                fileExists = true;
            }
        }

        @Override
        public void run() {
            try {
                Log.e("Connecting to","Server");
                socket = new Socket(host_address,2050);
                Log.e("Connection","Made");
                fileOutputStream = new FileOutputStream(mFile);
                bufferedOutputStream = new BufferedOutputStream(fileOutputStream);
                dataInputStream = new DataInputStream(socket.getInputStream());

                byte data[] = new byte[1000005];
                int l;
                while( (l = dataInputStream.read(data,0,1000005)) > 0)
                {
                    bufferedOutputStream.write(data,0,l);
                }
                Toast.makeText(getApplication(),"File Received",Toast.LENGTH_LONG).show();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }

        void stop()
        {

            try {
                if(bufferedOutputStream != null)
                bufferedOutputStream.close();
                if(fileOutputStream!=null)
                fileOutputStream.close();
                if(dataInputStream != null)
                dataInputStream.close();
                if(socket!=null)
                socket.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

在记录“连接到客户端”后，发送方不会继续前进，并且在记录“连接到服务器”之后，接收方会等待。 服务器设备的InetAddress是正确的，因为一旦建立wifi连接，它就会由android WifiP2p管理器生成。

此外，在此之前，我已经实现了聊天功能。我已经在两个设备上的特定端口（2048）上创建了套接字，以实现聊天功能。它运行完美，并且可以在设备之间轻松建立连接。

文件传输功能的套接字不同，端口（2050）也不同，但这不起作用。

您还可以建议是否有更好的方法来实现这两个功能。